Annual report pursuant to Section 13 and 15(d)

Short-Term Investments and Marketable Securities - Schedule of Cost and Market Values of Investments (Details)

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Short-Term Investments and Marketable Securities - Schedule of Cost and Market Values of Investments (Details) (USD $)
12 Months Ended 36 Months Ended 48 Months Ended
Nov. 30, 2013
Nov. 30, 2012
Nov. 30, 2011
Nov. 30, 2012
Nov. 30, 2013
Schedule of Trading Securities and Other Trading Assets [Line Items]          
Short-term investments and marketable securities at cost $ 823,419 $ 2,227,909   $ 2,227,909 $ 823,419
Available-for-sale Securities, Fair Value Disclosure 1,112,440 2,283,772   2,283,772 1,112,440
Unrealized Gain (Loss) on Investments 289,021        
Deferred Other Tax Expense (Benefit) 86,053     (20,616) (106,669)
Bank Certificates of Deposit Insured 500,000       500,000
Bank Certificate of Deposit Insured for Cash 100,000       100,000
Proceeds from sale and maturity of investments 1,553,000 4,430,892 3,516,000    
Gross unrealized gains 289,021 76,119   76,119 289,021
Gross unrealized losses 0 (20,256)   (20,256) 0
Loss (Gain) on sale of securities 4,518 (121,670) (815)    
Corporate Obligations [Member]
         
Schedule of Trading Securities and Other Trading Assets [Line Items]          
Short-term investments and marketable securities at cost 0 1,004,490   1,004,490 0
Available-for-sale Securities, Fair Value Disclosure 0 995,827   995,827 0
Limited Partnerships [Member]
         
Schedule of Trading Securities and Other Trading Assets [Line Items]          
Short-term investments and marketable securities at cost 223,373 223,373   223,373 223,373
Available-for-sale Securities, Fair Value Disclosure 354,050 292,680   292,680 354,050
Common Stock
         
Schedule of Trading Securities and Other Trading Assets [Line Items]          
Short-term investments and marketable securities at cost 600,046 600,046   600,046 600,046
Available-for-sale Securities, Fair Value Disclosure 758,390 595,626   595,626 758,390
Fixed Income Securities [Member]
         
Schedule of Trading Securities and Other Trading Assets [Line Items]          
Short-term investments and marketable securities at cost 0 400,000   400,000 0
Available-for-sale Securities, Fair Value Disclosure $ 0 $ 399,639   $ 399,639 $ 0